2291610065620 has 24 divisors (see below), whose sum is σ = 4924296980064. Its totient is φ = 895326722976.

The previous prime is 2291610065609. The next prime is 2291610065621. The reversal of 2291610065620 is 265600161922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291610065621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1332330574 + ... + 1332332293.

It is an arithmetic number, because the mean of its divisors is an integer number (205179040836).

Almost surely, 2^{2291610065620} is an apocalyptic number.

2291610065620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2291610065620 is an abundant number, since it is smaller than the sum of its proper divisors (2632686914444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2291610065620 is a wasteful number, since it uses less digits than its factorization.

2291610065620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664662919 (or 2664662917 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 2291610065620 in words is "two trillion, two hundred ninety-one billion, six hundred ten million, sixty-five thousand, six hundred twenty".